Writing board



FIG. 1 is a perspective view of a writing board showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is an exploded perspective view of the writing board.

The broken lines in the drawings depict portions of the writing board that form no part of the claimed design. 

CLAIM The ornamental design for a writing board, as shown and described. 